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Posted to dev@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2014/06/13 17:09:03 UTC

[jira] [Created] (FLINK-935) Bug in Optimizer when reusing work across iterations

Stephan Ewen created FLINK-935:
----------------------------------

             Summary: Bug in Optimizer when reusing work across iterations
                 Key: FLINK-935
                 URL: https://issues.apache.org/jira/browse/FLINK-935
             Project: Flink
          Issue Type: Bug
          Components: Compiler/Optimizer
    Affects Versions: 0.6-incubating, pre-apache-0.5, pre-apache-0.5.1
            Reporter: Stephan Ewen
            Assignee: Stephan Ewen
             Fix For: 0.6-incubating, pre-apache-0.5.2
         Attachments: screenshot.png

The following created plan is invalid

{code}
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		"type": "source",
		"pact": "Data Source",
		"contents": "CSV Input (,) /some/file/path",
		"parallelism": "4",
		"subtasks_per_instance": "1",
		"global_properties": [
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			{ "name": "Partitioning Order", "value": "(none)" },
			{ "name": "Uniqueness", "value": "not unique" }
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		],
		"estimates": [
			{ "name": "Est. Output Size", "value": "(unknown)" },
			{ "name": "Est. Cardinality", "value": "(unknown)" }		],
		"costs": [
			{ "name": "Network", "value": "0.0" },
			{ "name": "Disk I/O", "value": "0.0" },
			{ "name": "CPU", "value": "0.0" },
			{ "name": "Cumulative Network", "value": "0.0" },
			{ "name": "Cumulative Disk I/O", "value": "0.0" },
			{ "name": "Cumulative CPU", "value": "0.0" }
		],
		"compiler_hints": [
			{ "name": "Output Size (bytes)", "value": "(none)" },
			{ "name": "Output Cardinality", "value": "(none)" },
			{ "name": "Avg. Output Record Size (bytes)", "value": "(none)" },
			{ "name": "Filter Factor", "value": "(none)" }		]
	},
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		"id": 2,
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		"contents": "eu.stratosphere.pact.compiler.IterationsCompilerTest$DuplicateValue",
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		],
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			{ "name": "Avg. Output Record Size (bytes)", "value": "(none)" },
			{ "name": "Filter Factor", "value": "(none)" }		]
	},
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		],
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			{ "name": "CPU", "value": "0.0" },
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			{ "name": "Filter Factor", "value": "(none)" }		]
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			{ "name": "Filter Factor", "value": "(none)" }		]
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			{ "name": "Filter Factor", "value": "(none)" }		]
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		"parallelism": "4",
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		],
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			{ "name": "Est. Cardinality", "value": "(unknown)" }		],
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			{ "name": "Disk I/O", "value": "0.0" },
			{ "name": "CPU", "value": "0.0" },
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			{ "name": "Cumulative Disk I/O", "value": "(unknown)" },
			{ "name": "Cumulative CPU", "value": "(unknown)" }
		],
		"compiler_hints": [
			{ "name": "Output Size (bytes)", "value": "(none)" },
			{ "name": "Output Cardinality", "value": "(none)" },
			{ "name": "Avg. Output Record Size (bytes)", "value": "(none)" },
			{ "name": "Filter Factor", "value": "(none)" }		]
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		"global_properties": [
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		],
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			{ "name": "Est. Cardinality", "value": "(unknown)" }		],
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			{ "name": "Filter Factor", "value": "(none)" }		]
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			{ "name": "Filter Factor", "value": "(none)" }		]
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		],
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			{ "name": "Filter Factor", "value": "(none)" }		]
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		],
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			{ "name": "Est. Cardinality", "value": "(unknown)" }		],
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			{ "name": "CPU", "value": "(unknown)" },
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			{ "name": "Avg. Output Record Size (bytes)", "value": "(none)" },
			{ "name": "Filter Factor", "value": "(none)" }		]
	},
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		"id": 0,
		"type": "sink",
		"pact": "Data Sink",
		"contents": "Print to System.out",
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		],
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			{ "name": "Cumulative CPU", "value": "(unknown)" }
		],
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			{ "name": "Output Size (bytes)", "value": "(none)" },
			{ "name": "Output Cardinality", "value": "(none)" },
			{ "name": "Avg. Output Record Size (bytes)", "value": "(none)" },
			{ "name": "Filter Factor", "value": "(none)" }		]
	}
	]
}
{code}



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